// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "cc/proto/gfx_conversions.h"

#include "cc/proto/point.pb.h"
#include "cc/proto/point3f.pb.h"
#include "cc/proto/pointf.pb.h"
#include "cc/proto/rect.pb.h"
#include "cc/proto/rectf.pb.h"
#include "cc/proto/scroll_offset.pb.h"
#include "cc/proto/size.pb.h"
#include "cc/proto/sizef.pb.h"
#include "cc/proto/transform.pb.h"
#include "cc/proto/vector2d.pb.h"
#include "cc/proto/vector2df.pb.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/gfx/geometry/point.h"
#include "ui/gfx/geometry/point3_f.h"
#include "ui/gfx/geometry/point_f.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/geometry/rect_f.h"
#include "ui/gfx/geometry/scroll_offset.h"
#include "ui/gfx/geometry/size.h"
#include "ui/gfx/geometry/size_f.h"
#include "ui/gfx/geometry/vector2d_f.h"
#include "ui/gfx/transform.h"

namespace cc {
namespace {

    TEST(GfxProtoConversionsTest, IntSerializationLimits)
    {
        // Test Point with the minimum int value.
        {
            gfx::Point point(std::numeric_limits<int>::min(),
                std::numeric_limits<int>::min());
            proto::Point proto;
            PointToProto(point, &proto);
            EXPECT_EQ(point, ProtoToPoint(proto));
        }

        // Test Point with the maximum int value.
        {
            gfx::Point point(std::numeric_limits<int>::max(),
                std::numeric_limits<int>::max());
            proto::Point proto;
            PointToProto(point, &proto);
            EXPECT_EQ(point, ProtoToPoint(proto));
        }

        // Test Size with the minimum int value.
        {
            gfx::Size size(std::numeric_limits<int>::min(),
                std::numeric_limits<int>::min());
            proto::Size proto;
            SizeToProto(size, &proto);
            EXPECT_EQ(size, ProtoToSize(proto));
        }

        // Test Size with the maximum int value.
        {
            gfx::Size size(std::numeric_limits<int>::max(),
                std::numeric_limits<int>::max());
            proto::Size proto;
            SizeToProto(size, &proto);
            EXPECT_EQ(size, ProtoToSize(proto));
        }
    }

    TEST(GfxProtoConversionsTest, SerializeDeserializePoint)
    {
        const gfx::Point point(5, 10);

        // Test PointToProto
        proto::Point proto;
        PointToProto(point, &proto);
        EXPECT_EQ(point.x(), proto.x());
        EXPECT_EQ(point.y(), proto.y());

        // Test protoToPoint
        EXPECT_EQ(point, ProtoToPoint(proto));
    }

    TEST(GfxProtoConversionsTest, SerializeDeserializePointF)
    {
        const gfx::PointF point(5.1f, 10.2f);

        // Test PointFToProto
        proto::PointF proto;
        PointFToProto(point, &proto);
        EXPECT_EQ(point.x(), proto.x());
        EXPECT_EQ(point.y(), proto.y());

        // Test ProtoToPointF
        EXPECT_EQ(point, ProtoToPointF(proto));
    }

    TEST(GfxProtoConversionsTest, SerializeDeserializePoint3F)
    {
        const gfx::Point3F point(5.1f, 10.2f, 13.4f);

        // Test PointFToProto
        proto::Point3F proto;
        Point3FToProto(point, &proto);
        EXPECT_EQ(point.x(), proto.x());
        EXPECT_EQ(point.y(), proto.y());
        EXPECT_EQ(point.z(), proto.z());

        // Test ProtoToPoint3F
        EXPECT_EQ(point, ProtoToPoint3F(proto));
    }

    TEST(GfxProtoConversionsTest, SerializeDeserializeSize)
    {
        const gfx::Size size(5, 10);

        // Test SizeToProto
        proto::Size proto;
        SizeToProto(size, &proto);
        EXPECT_EQ(size.width(), proto.width());
        EXPECT_EQ(size.height(), proto.height());

        // Test ProtoToSize
        EXPECT_EQ(size, ProtoToSize(proto));
    }

    TEST(GfxProtoConversionsTest, SerializeDeserializeSizeF)
    {
        const gfx::SizeF size(5.1f, 10.2f);

        // Test SizeFToProto
        proto::SizeF proto;
        SizeFToProto(size, &proto);
        EXPECT_EQ(size.width(), proto.width());
        EXPECT_EQ(size.height(), proto.height());

        // Test ProtoToSizeF
        EXPECT_EQ(size, ProtoToSizeF(proto));
    }

    TEST(GfxProtoConversionsTest, SerializeDeserializeRect)
    {
        const gfx::Rect rect(1, 2, 3, 4);

        // Test RectToProto
        proto::Rect proto;
        RectToProto(rect, &proto);
        EXPECT_EQ(rect.origin().x(), proto.origin().x());
        EXPECT_EQ(rect.origin().y(), proto.origin().y());
        EXPECT_EQ(rect.size().width(), proto.size().width());
        EXPECT_EQ(rect.size().height(), proto.size().height());

        // Test ProtoToRect
        EXPECT_EQ(rect, ProtoToRect(proto));
    }

    TEST(GfxProtoConversionsTest, SerializeDeserializeRectF)
    {
        const gfx::RectF rect(1.4f, 2.3f, 3.2f, 4.1f);

        // Test RectFToProto
        proto::RectF proto;
        RectFToProto(rect, &proto);
        EXPECT_EQ(rect.origin().x(), proto.origin().x());
        EXPECT_EQ(rect.origin().y(), proto.origin().y());
        EXPECT_EQ(rect.size().width(), proto.size().width());
        EXPECT_EQ(rect.size().height(), proto.size().height());

        // Test ProtoToRectF
        EXPECT_EQ(rect, ProtoToRectF(proto));
    }

    TEST(GfxProtoConversionsTest, SerializeDeserializeTransform)
    {
        gfx::Transform transform(1.16f, 2.15f, 3.14f, 4.13f, 5.12f, 6.11f, 7.1f, 8.9f,
            9.8f, 10.7f, 11.6f, 12.5f, 13.4f, 14.3f, 15.2f,
            16.1f);

        // Test TransformToProto
        proto::Transform proto;
        TransformToProto(transform, &proto);
        EXPECT_EQ(16, proto.matrix_size());
        EXPECT_EQ(transform.matrix().get(0, 0), proto.matrix(0));
        EXPECT_EQ(transform.matrix().get(0, 1), proto.matrix(1));
        EXPECT_EQ(transform.matrix().get(0, 2), proto.matrix(2));
        EXPECT_EQ(transform.matrix().get(0, 3), proto.matrix(3));
        EXPECT_EQ(transform.matrix().get(1, 0), proto.matrix(4));
        EXPECT_EQ(transform.matrix().get(1, 1), proto.matrix(5));
        EXPECT_EQ(transform.matrix().get(1, 2), proto.matrix(6));
        EXPECT_EQ(transform.matrix().get(1, 3), proto.matrix(7));
        EXPECT_EQ(transform.matrix().get(2, 0), proto.matrix(8));
        EXPECT_EQ(transform.matrix().get(2, 1), proto.matrix(9));
        EXPECT_EQ(transform.matrix().get(2, 2), proto.matrix(10));
        EXPECT_EQ(transform.matrix().get(2, 3), proto.matrix(11));
        EXPECT_EQ(transform.matrix().get(3, 0), proto.matrix(12));
        EXPECT_EQ(transform.matrix().get(3, 1), proto.matrix(13));
        EXPECT_EQ(transform.matrix().get(3, 2), proto.matrix(14));
        EXPECT_EQ(transform.matrix().get(3, 3), proto.matrix(15));

        // Test ProtoToTransform
        EXPECT_EQ(transform, ProtoToTransform(proto));

        // Test for identity transforms.
        gfx::Transform transform2;
        EXPECT_TRUE(transform2.IsIdentity());
        proto::Transform proto2;
        TransformToProto(transform2, &proto2);
        EXPECT_EQ(transform2, ProtoToTransform(proto2));
    }

    TEST(GfxProtoConversionsTest, SerializeDeserializeVector2dF)
    {
        // Test Case 1
        const gfx::Vector2dF vector1(5.1f, 10.2f);

        // Test Vector2dFToProto
        proto::Vector2dF proto1;
        Vector2dFToProto(vector1, &proto1);
        EXPECT_EQ(vector1.x(), proto1.x());
        EXPECT_EQ(vector1.y(), proto1.y());

        // Test ProtoToVector2dF
        EXPECT_EQ(vector1, ProtoToVector2dF(proto1));

        // Test Case 2
        const gfx::Vector2dF vector2(-3.1f, 0.2f);

        // Test Vector2dFToProto
        proto::Vector2dF proto2;
        Vector2dFToProto(vector2, &proto2);
        EXPECT_EQ(vector2.x(), proto2.x());
        EXPECT_EQ(vector2.y(), proto2.y());

        // Test ProtoToVector2dF
        EXPECT_EQ(vector2, ProtoToVector2dF(proto2));

        // Test Case 3
        const gfx::Vector2dF vector3(2.0f, -1.5f);

        // Test Vector2dFToProto
        proto::Vector2dF proto3;
        Vector2dFToProto(vector3, &proto3);
        EXPECT_EQ(vector3.x(), proto3.x());
        EXPECT_EQ(vector3.y(), proto3.y());

        // Test ProtoToVector2dF
        EXPECT_EQ(vector3, ProtoToVector2dF(proto3));
    }

    TEST(GfxProtoConversionsTest, SerializeDeserializeScrollOffset)
    {
        // Test Case 1
        const gfx::ScrollOffset scroll_offset1(5.1f, 10.2f);

        // Test ScrollOffsetToProto
        proto::ScrollOffset proto1;
        ScrollOffsetToProto(scroll_offset1, &proto1);
        EXPECT_EQ(scroll_offset1.x(), proto1.x());
        EXPECT_EQ(scroll_offset1.y(), proto1.y());

        // Test ProtoToScrollOffset
        EXPECT_EQ(scroll_offset1, ProtoToScrollOffset(proto1));

        // Test Case 2
        const gfx::ScrollOffset scroll_offset2(-0.1f, 0.2f);

        // Test ScrollOffsetToProto
        proto::ScrollOffset proto2;
        ScrollOffsetToProto(scroll_offset2, &proto2);
        EXPECT_EQ(scroll_offset2.x(), proto2.x());
        EXPECT_EQ(scroll_offset2.y(), proto2.y());

        // Test ProtoToScrollOffset
        EXPECT_EQ(scroll_offset2, ProtoToScrollOffset(proto2));

        // Test Case 3
        const gfx::ScrollOffset scroll_offset3(4.0f, -3.2f);

        // Test ScrollOffsetToProto
        proto::ScrollOffset proto3;
        ScrollOffsetToProto(scroll_offset3, &proto3);
        EXPECT_EQ(scroll_offset3.x(), proto3.x());
        EXPECT_EQ(scroll_offset3.y(), proto3.y());

        // Test ProtoToScrollOffset
        EXPECT_EQ(scroll_offset3, ProtoToScrollOffset(proto3));
    }

    TEST(GfxProtoConversionsTest, SerializeDeserializeVector2d)
    {
        const gfx::Vector2d vector(5, 10);

        // Test Vector2dToProto
        proto::Vector2d proto;
        Vector2dToProto(vector, &proto);
        EXPECT_EQ(vector.x(), proto.x());
        EXPECT_EQ(vector.y(), proto.y());

        // Test ProtoToVector2d
        EXPECT_EQ(vector, ProtoToVector2d(proto));
    }

} // namespace
} // namespace cc
